Alert archive / Maryland / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 63, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 23, 2015, 6:44 PM EDT for Caroline County, Kent County, Queen Anne's County, Maryland; Kent County, Delaware. It was in force for 76 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 23, 2015, 6:44 PM EDT (22:44 UTC)
- Expired
- Jun 23, 2015, 8:00 PM EDT
- In force
- 76 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 50 km from the middle of the area, began a volume at 22:45 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 23, 4:09 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.7 hours before the alert went out and 125 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 387 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 1544 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted, in the capitals the NWS used until 2016.
565
WUUS51 KPHI 232244
SVRPHI
DEC001-MDC011-029-035-240000-
/O.NEW.KPHI.SV.W.0063.150623T2244Z-150624T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
644 PM EDT TUE JUN 23 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
KENT COUNTY IN CENTRAL DELAWARE...
QUEEN ANNE'S COUNTY IN NORTHEASTERN MARYLAND...
NORTHEASTERN CAROLINE COUNTY IN EASTERN MARYLAND...
KENT COUNTY IN NORTHEASTERN MARYLAND...
* UNTIL 800 PM EDT
* AT 644 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR
SASSAFRAS TO FORT SMALLWOOD STATE PARK TO BELTSVILLE...AND MOVING
EAST AT 60 MPH.
* LOCATIONS IMPACTED INCLUDE...
DOVER...CENTERVILLE...SMYRNA...MILFORD...CHESTERTOWN...
CENTREVILLE...HARRINGTON...CAMDEN...CLAYTON...GREENSBORO...
OAKLAND...RIDGELY...CHESWOLD...ROCK HALL...CHURCH HILL...
MILLINGTON...SUDLERSVILLE...BOWERS...GOLDSBORO AND WOODSIDE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE. THIS IS A VERY
DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3904 7631 3898 7628 3897 7622 3900 7617
3903 7624 3919 7626 3934 7548 3925 7540
3907 7541 3901 7533 3894 7531 3896 7539
3888 7552 3894 7607 3893 7621 3896 7624
3894 7625 3895 7636 3896 7636
TIME...MOT...LOC 2244Z 263DEG 54KT 3935 7575 3918 7647 3904 7690
$$1 follow-up statement
228
WWUS51 KPHI 232349
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
749 PM EDT TUE JUN 23 2015
MDC029-232358-
/O.CAN.KPHI.SV.W.0063.000000T0000Z-150624T0000Z/
KENT MD-
749 PM EDT TUE JUN 23 2015
...THE SEVERE THUNDERSTORM WARNING FOR KENT COUNTY IS CANCELLED...
THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED SOUTH OUT
OF THE AREA.
LAT...LON 3904 7631 3898 7628 3897 7622 3900 7617
3902 7613 3905 7610 3917 7547 3915 7541
3907 7541 3901 7533 3894 7531 3896 7539
3888 7552 3894 7607 3893 7621 3896 7624
3894 7625 3895 7636 3896 7636
TIME...MOT...LOC 2348Z 268DEG 40KT 3915 7531 3898 7603 3884 7646
$$
DEC001-MDC011-035-240000-
/O.CON.KPHI.SV.W.0063.000000T0000Z-150624T0000Z/
KENT DE-QUEEN ANNE'S MD-CAROLINE MD-
749 PM EDT TUE JUN 23 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR SOUTHERN KENT...SOUTHERN QUEEN ANNE'S AND NORTHEASTERN CAROLINE
COUNTIES...
AT 748 PM EDT...DOPPLER RADAR INDICATED A LINE OF SEVERE
THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60
MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 7 MILES
NORTHEAST OF BOWERS TO STARR TO NEAR GALESVILLE...MOVING EAST AT 45
MPH.
LOCATIONS IMPACTED INCLUDE...
DOVER...CENTERVILLE...MILFORD...CENTREVILLE...HARRINGTON...CAMDEN...
GREENSBORO...OAKLAND...RIDGELY...BOWERS...GOLDSBORO...WOODSIDE...
VIOLA...STARR...HOPE...RISING SUN...GRASONVILLE...HAZLETTVILLE...
JUMPTOWN AND STEVENSVILLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
THESE STORMS HAVE A HISTORY OF PRODUCING WIND DAMAGE. THIS IS A VERY
DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3904 7631 3898 7628 3897 7622 3900 7617
3902 7613 3905 7610 3917 7547 3915 7541
3907 7541 3901 7533 3894 7531 3896 7539
3888 7552 3894 7607 3893 7621 3896 7624
3894 7625 3895 7636 3896 7636
TIME...MOT...LOC 2348Z 268DEG 40KT 3915 7531 3898 7603 3884 7646
$$The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 5:19 PM EDT | Areal Flood Advisory | PHI | Cecil | 4 hr |
| Jun 23, 5:28 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 47 min |
| Jun 23, 5:38 PM EDT | Severe Thunderstorm Warning | PHI | Cecil | 52 min |
| Jun 23, 5:44 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 4 hr |
| Jun 23, 6:48 PM EDT | Areal Flood Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 4 hr |
| Jun 23, 7:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 84 min |
| Jun 23, 7:41 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 65 min |
| Jun 23, 6:14 PM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 4 hr |
Nearby
Severe Thunderstorm Warnings in Maryland, 2015Severe Thunderstorm Warnings in Delaware, 2015Every severe thunderstorm warning in 2015
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.